Refrigeration



July 14, 1936. R. L. HALLOCK REFRIGERATION Filed May 16, 1934 K I AQRNEY Patented July 14, 1936' v UNITED STATES PATENT, OFFICE '1 Claims.(01. 62-1085) My invention relates to refrigeration and more The frontof the evaporator is provided with a particularly to mechanism forremoving an ice cover plate ,2I having an aperture 22 through tray froman evaporator to which it may be which the ice tray is inserted and asecond aperfrozen. I ture 23 through which extends a lever or finger 5The object of my invention is to provide anpiece 24. Cover plate 2| issuitably fixedly se- 6 arrangement which: is independent of the icecured to the evaporator structure formed by the tray itself; acts bothto lift the ice-tray from side walls II and the shelves Ill.

, the shelf to which it may be frozen and move A boss 25 is provided onthe left-hand side the, ice tray forwardly; is not affected bythickwall, as shown. This boss and its associated 10 ness of ice film onthe shelf; provides a large mechanism and the inclined surface 20 may be10 moving force with application of little initiating provided on theopposite side of the ice tray if force; is sturdy and neat inappearance; is easy desired, but preferably only one such structure tokeep clean; and which does not bind. is provided. The boss 25 isprovided with a non- My invention will be understood from the folzontalbore or aperture 26 in which is journalled lowing description of apreferred embodiment a shaft 21 integral with the lever or finger piece15 shown on the accompanying drawing, which 24. On the insideof the wallii a cam member drawing forms a part of this specification, and ,28 issecured to member 27 as by a pin 29. The of h; shape of the cam memberis shown in Fig. 3;

Fig. 1 is a plan .view of an ice tray shown in an With the lever 24 indown position the cam 28 evaporator, the apparatus having the inventiondoes nottouchthe tray. The cam member 28 o embodied therein, theevaporator being shown in is p oned just under the surface 20 andhorizontal ross-sectional view; is of such form and so positioned, aboutmid- Fig. 2 is a side view, partly in section, taken on way of theheight of the tray, that on I the line 22 of'Fig. 1; raising the fingerpiece 24, the cam member Fig. 3 is a vertical sectional view taken onthe 28 contacts the. in l d u a s 25 line 33 of Fig. 1; imparts a .forceagainst the surface 20 and Fig. 4 is a front view; and due to theincline of the surface 20 this force has Fig. 5 is a transverse verticalsectional view both alifting component and a forward pushing taken onthe line 55 of Fig. 2. component. By lifting on the finger piece 2d the30 The evaporator comprises shelves ill on which cam 28 bears upwardlyagainst the web it and an ice trays are adapted to rest, and side wallsIt. thus pries the.tray from the shelf beginning at The evaporator iscooled to below water freezing one corner. The shelf being made offlexible temperature by means. such as a cooling coil emmaterial andbeing twistable diagonally, the tray bedded in or in good thermalrelation with walls can be progressively peeled from the shelf due toii. Between the side walls and two shelves it the lifting of the fingerpiece 24 and the action 35 is formed. a compartment i2 for reception ofan of cam 28. The plate It acts as a stop to prevent ice tray it. Theice tray includes a. body porthe tray from being lifted-bycontaet withthe tion of rectangular dish shape adapted to recam on inserting thetray into the compartment ceive water and having a bottom wall Itadapted H. The arrangement is such that in case the to rest on the shelfill. The body portion is lever 24 should be stuck-in up position, on re-40 preferably made of bendable metal such as thin inserting the trayinto the compartment i2 the aluminum sheet. At the front of the traybody surface 20 will contact the cam and return the is a flange I5 towhich is fastened a tray front lever to down position. Normally thelever will it bent to form a drawer type handle i'l into fall to downposition whenit is released. The

whichv the fingers of the operator may be incam 28 on being turned byupward lifting lever serted upwardly for drawing the tray out of the 24first peels the tray from the shelf and then compartment l2. A web orflange i8 is formed moves the tray outwardly. The tray may be at theforwards left-hand corner of the tray. pushed entirely within thecompartment l2 and This web It may, and preferably does, meet the theoutward movement due to operation of cam flange i5 for purposes ofrigidity and a like web 28 may cause t e t y handle to be posed so 50may be provided on the opposite side of the that it can be grasped. I 7tray. The lower part of web l8 may be bent It will be seen that thereleasing mechanism-is inwardly as shown at l9 (Fig. 5) and the bottomentirely above the shelf and that it is of such. of this web provides aninclined surface 20 which construction that it cannot become ice boumL65 extends forwardly and downwardly. It will be understood that therewill be a series of levers 24 one above the other, one for each tray.The lever 24 may be lifted by placing the thumb on a higher .level andusing a finger to lift the particular lever for freeing the desired icetray.

I have shown only a preferred form of the invention but it will beunderstood that various modifications may be made within the spirit andscope of the invention.

What I claim is:

1. The combination with an evaporator having a shelf and a side wall, ofturnable means mounted on said side wall above said shelf for releasingan ice tray supported by said evaporator, said means being constructedand arranged to exert force against such tray above said shelf and beingitself entirely independent of said shelf.

2. In refrigerating apparatus, an evaporator, a diagonally twistabletray adapted to be supported by said evaporator, and means mounted onthe evaporator and constructed and arranged to exert force against saidtray at a different level'than that at which the tray is supported topry said tray from the evaporator by diagonal twisting beginning at onecorner of the tray.

3. In refrigerating apparatus. an evaporator, a tray adapted to besupported by said evaporator having a part providing a forwardly anddownwardly extending surface, a cam member mounted on said evaporatoradapted to contact said surface, and a forwardly extending lever forturning said cam member.

4. The combination with an evaporator having a shelf and a side wall,and an ice tray adapted to be supported by said evaporator, of aturnable 5 member mounted on said side wall and engageable with aportion of said ice tray above said shelf to release said tray from saidshelf.

5. In refrigerating apparatus, an evaporator having a-shelf and a sidewall, an ice tray adapt- 10 ed to be supported on said shelf, said icetray having a part providing an inclined plane, and a cam adapted to actagainst said inclined plane and mounted on said side wall.

6. In refrigerating apparatus, an evaporator 16 member having a shelfand a side wall, a front plate for said evaporator member having a firstaperture for insertion of an ice tray and a second aperture to one sideof said first aperture, and a tray moving lever mounted on said sidewall 20 above said shelf and having an arm projecting through saidsecond aperture and constructed and arranged to contact the tray abovesaid shelf to release the tray from the shelf.

7. The combination with an evaporator shelf and a tray supported therebyand having a surface above said shelf, of means mounted above said shelffor imparting a force to said surface having lifting and forwardlypushing components.

ROBERT LAY KAI-LOCK.

